2003 FORD MUSTANG torque

19. Lubricate the pinion flange splines.
zUse SAE 75W- 140 High Performance Rear Axle Lubricant F1TZ-19580- B or equivalent
meeting Ford specification WSL- M2C192-A.
20. NOTE: Disregard the index marks if installing a new pinion flange.
Position the pinion flange.
21. Using the special tools, install the pinion flange.
22. CAUTION: Do not under any circumstance loosen the nut to reduce preload. If it is
necessary to reduce preload, install a new collapsible spacer and nut.
CAUTION: Remove the special tool while taking readings with the Nm (inch- pound)
torque wrench.
Tighten the nut to set the preload.
zRotate the drive pinion occasionally to make sure the differential pinion bearings seat
correctly. Take frequent differential pinion bearing torque preload readings by rotating the
drive pinion with a Nm (inch- pound) torque wrench. Klj . 11 ba
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z
For new differential pinion bearings, tighten the nut to specification. Refer to torque
specifications for new differential pinion bearings in the Specifications portion of this
section.
z For used differential pinion bearings, if the preload recorded prior to disassembly is lower
than the specification for used bearings, then tighten the nut to specification. Refer to
torque specifications for used differential pinion bearings in the Specifications portion of
this section.
z For used differential pinion bearings, if the preload recorded prior to disassembly is
higher than the specification for used bearings, then tighten the nut to the original reading
as recorded.
Final assembly 23. Install the differential assembly in the differential housing. For additional information, refer to Differential Case in this section.
24. CAUTION: Align the index marks.
CAUTION: Install the driveshaft with new bolts. If new bolts are not available, apply
Threadlock and Sealer EOAZ-19554- AA or equivalent meeting Ford specification WSK-
M2G351- A5 to the threads of the original bolts.
CAUTION: The driveshaft centering socket yoke fits tightly on the pinion flange
pilot. To make sure that the yoke seats squarely on the flange, tighten the bolts evenly in
a cross pattern as shown.
Connect the driveshaft. For additional information, refer to Section 205 - 01 .
25. Lower the vehicle. Klj . 12 ba
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14. Mount the differential case and the special tool in a vise. Using the special tool, check the
torque necessary to rotate one differential side gear.
zIf reusing the original clutch plates, the initial minimum break- away torque must be no
less than the specification. The minimum rotating torque necessary to keep the
differential side gear turning with new clutch plates may vary.
15. Using the special tool, install the differential bearings, if removed.
16. Position the differential ring gear and the differential case. Align the bolt holes by starting two bolts through the holes in the differential case and the differential ring gear. Press the
differential ring gear on the differential case. Klj . 8 ba
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SPECIFICATIONS
SECTION 205-
02C: Rear Drive Axle/Differential — Ford 8.8-Inch IRS 2003 Mustang Workshop Manual General Specifications
Item Specification
Lubricants/Adhesive/Sealants
Premium Long-
Life Grease XG -1-C ESA-
M1C75- B SAE 75W-
140 High Performance Rear Axle Lubricant F1TZ-
19580- B WSL-
M2C192- A Additive Friction Modifier C8AZ-
19B546-A EST-
M2C118- A Clear Silicone Rubber F7AZ-
19554-CA ESB-
M4G92- A Stud and Bearing Mount EOAZ-19554-
BA WSK-
M2G349- A1 Threadlock and Sealer EOAZ-19554-
AA WSK-
M2G351- A5 High Temperature Nickel Anti-
Seize Lubricant F6AZ-9L494-
AA ESE-
M12A4-A Capacity
Additive Friction Modifier 118 ml (4 oz)
Rear axle lubricant 1.23-
1.37 liters (2.6- 2.9 pints) Rear axle lubricant level 6.35 mm (1/4 inch) from the bottom of
the fill hole Clearance, Tolerance and Adjustments
Maximum carrier spread 0.762 mm (0.030 in)
Maximum differential ring gear backface runout 0.076 mm (0.003 in)
Maximum differential case runout 0.076 mm (0.003 in)
Backlash between differential ring gear and pinion teeth 0.203 mm (0.008 in)-
0.330 mm (0.013
in) Preferred backlash 0.254 mm (0.010 in)
Maximum backlash variation between teeth 0.1016 mm (0.004 in)
Maximum radial runout of rear axle pinion flange in
assembly TIR 0.254 mm (0.010 in)
Available drive pinion bearing adjustment shim in steps of:
0.0254 mm (0.001 in) 0.254 mm (0.010 in)-
0.965 mm (0.038
in) Lubricant deflector to differential housing cover 5.08 mm (0.200 in)-
6.35 mm (0.250 in)
Torque Specifications Description Nm lb-
ft lb-
in Rear axle wheel hub retainer 340 251 —
Driveshaft to pinion flange bolt 112 83 —
Rear axle differential front lower insulator nut and bolt 70 52 —
Rear axle differential rear insulator bolt 103 76 —Klj . 1 ba
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a
Use Stud and Bearing Mount EOAZ-19554- BA or equivalent meeting Ford specification WSK-
M2G349- A1.
b With pinion flange yoke seal. Pinion nose crossmember nut 250 184 —
Toe link nut 47 35 —
Shock absorber to lower suspension arm and bushing 133 98 —
Knuckle to lower suspension arm and bushing 115 85 —
Knuckle to upper suspension arm and bushing 90 66 —
Filler plug 34 25 —
Ring gear bolt
a 105 77 —
Differential pinion shaft lock bolt 30 22 —
Bearing cap bolt 105 77 —
Differential housing cover bolt 32 24 —
Pinion bearing preload
—(drive pinion collapsible spacer) used bearings b 0.9-
1.16 — 8-14
New pinion bearings 1.8-
3.2 — 16-
29 Traction-
Lok® clutch gauge nut 6.7 — 60
Initial minimum breakaway torque 27 20 —Klj . 2 ba
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5. Install an Nm (inch/pound) torque wrench on the nut and record the torque necessary to
maintain rotation of the drive pinion gear through several revolutions.
6. CAUTION: After removing the nut, discard it. Use a new nut for installation.
Use the special tool to hold the rear axle pinion flange while removing the nut.
7. Index- mark the rear axle pinion flange and drive pinion gear stem to maintain initial balance
during installation. Klj . 2 ba
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5.
CAUTION: Do not under any circumstance loosen the nut to reduce preload. If it is
necessary to reduce preload, install a new differential drive pinion collapsible spacer
(4662) and nut.
Tighten the nut to set the preload.
zRotate the pinion occasionally to make sure the pinion bearings (4630) (4621) seat
correctly. Take frequent pinion bearing torque preload readings by rotating the drive
pinion gear with a Nm (inch/pound) torque wrench.
z If the preload recorded prior to disassembly is lower than the specification for used
bearings, then tighten the nut to specification. If the preload recorded prior to
disassembly is higher than the specification for used bearings, then tighten the nut to the
original reading as recorded.
z Refer to the torque specification for used pinion bearings in the Specifications portion of
this section.
6. CAUTION: Align the index- marks.
CAUTION: Install the driveshaft with new bolts. If new bolts are not available, apply
Threadlock and Sealer EOAZ-19554- AA or equivalent meeting Ford specification WSK-
M2G351- A5 to the threads of the original bolts.
CAUTION: The driveshaft centering socket yoke fits tightly on the rear axle pinion
flange pilot. To make sure that the yoke seats squarely on the flange, tighten the bolts
evenly in a cross pattern as shown.
Connect the driveshaft. For additional information, refer to Section 205 - 01 . Klj . 4 ba
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Disassembly
Initial disassembly
1. Remove the differential housing cover (4033) and drain the lubricant into a suitable container.
2. Wipe the lubricant from the internal working parts and inspect the parts for wear and damage.
3. Using the special tool, measure and note the differential ring gear backface runout. zRemove the special tool. Gauge, Differential Clutch
205-
135 (T80P-4946- A) Gauge, Differential Clutch
Torque
205-
013 (T59L-4204- A) Remover, Bearing
205-
055 (T71P-4621- B) Holding Fixture, Transmission
307-
003 (T57L- 500-B) Klj . 4 ba
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